Sugar ratios in nectars of varieties of canola (Brassica napus)

publication date: Dec 21, 2010
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Journal of Apicultural Research
Vol. 30 (2) pp. 99-102
June 1991
Article Title

Sugar ratios in nectars of varieties of canola (Brassica napus)


P G Kevan; H Lee; R W Shuel


Of 25 varieties of canola (Brassica napus) tested for glucose, fructose and sucrose in their nectars, none had sucrose. The large amounts of glucose found, resulting in glucose: fructose (G : F) ratios of 0.95 or more in all but three varieties, indicated that resulting honeys . would tend to granulate readily. The nectars of Alto (G : F, 0.83-0.91) and Am Can (G : F, 0.87) contained relatively less glucose. The nectar of Global also contained less glucose but its G : F ratio was more variable (0.82-0.99). Honeys from these three varieties would have a lower tendency to granulate.


Brassica napus, canola, nectar, sugars, glucose, fructose, honey granulation, nectar plants

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